S&P 500's Mag 7 Concentration Sparks Bubble Fears as Market Cap Hits 30%
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最新报道：The "Magnificent 7" tech stocks (Apple, Microsoft, Alphabet, Amazon, Nvidia, Meta, Tesla) now account for nearly 30% of the S&P 500's total market cap, raising bubble concerns among investors. This concentration level hasn't been seen since the dot-com era, with the group's combined valuation exceeding $12 trillion. While these companies continue driving market gains, some analysts warn their high valuations may not be sustainable if earnings growth slows. The tech-heavy Nasdaq's 43% surge in 2023 further highlights this concentration risk, prompting debates about potential market corrections if investor sentiment shifts.
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